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Realizing increased sub-pixel spatial resolution in X-ray imaging using displaced multiple images
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
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2011 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 633, no Suppl 1, p. S247-S249Article in journal (Refereed) Published
Abstract [en]

A method, generally called oversampling, to reach sub-pixel resolution by taking slightly displaced images of an object is investigated for X-ray applications. By mounting the sensor on a high precision step motor table it is possible to increase the spatial resolution from 55 ÎŒm×55 ÎŒm to at least 20 ÎŒm×20 ÎŒm, which is required for quality assurance measurements in several industry processes. The performance compared to physically smaller pixels is shown, and the effects of charge sharing on the method are investigated. The suggested method is relatively cost effective compared to using X-ray microscopy. © 2010 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2011. Vol. 633, no Suppl 1, p. S247-S249
Keywords [en]
Oversampling; X-Ray; Displaced multiple images; Microscopy; Pixel detector; Medipix; Photon counting
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-12094DOI: 10.1016/j.nima.2010.06.179ISI: 000292782400073Scopus ID: 2-s2.0-79959843383Local ID: STCOAI: oai:DiVA.org:miun-12094DiVA, id: diva2:354997
Conference
Conference: 11th International Workshop on Radiation Imaging Detectors Location: Czech Technical Univ, Inst Experimental & Applied Phys, Prague, CZECH REPUBLIC Date: JUN 29-JUL 03, 2009
Available from: 2010-10-05 Created: 2010-10-05 Last updated: 2017-12-12Bibliographically approved

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Thim, JanNorlin, BörjeO'Nils, MatthiasAbdalla, SulimanOelmann, Bengt

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Thim, JanNorlin, BörjeO'Nils, MatthiasAbdalla, SulimanOelmann, Bengt
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Electrical Engineering, Electronic Engineering, Information Engineering

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